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net: skb->dst accessors

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Define three accessors to get/set dst attached to a skb

struct dst_entry *skb_dst(const struct sk_buff *skb)

void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)

void skb_dst_drop(struct sk_buff *skb)
This one should replace occurrences of :
dst_release(skb->dst)
skb->dst = NULL;

Delete skb->dst field

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2009-06-02 05:19:30 +00:00
committed by David S. Miller
parent 511c3f92ad
commit adf30907d6
83 changed files with 414 additions and 390 deletions
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11
drivers/net/pppol2tp.c
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@@ -433,8 +433,7 @@ static void pppol2tp_recv_dequeue_skb(struct pppol2tp_session *session, struct s
* to the inner packet either
*/
secpath_reset(skb);
dst_release(skb->dst);
skb->dst = NULL;
skb_dst_drop(skb);
nf_reset(skb);
po = pppox_sk(session_sock);
@@ -976,7 +975,7 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh
/* Calculate UDP checksum if configured to do so */
if (sk_tun->sk_no_check == UDP_CSUM_NOXMIT)
skb->ip_summed = CHECKSUM_NONE;
else if (!(skb->dst->dev->features & NETIF_F_V4_CSUM)) {
else if (!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM)) {
skb->ip_summed = CHECKSUM_COMPLETE;
csum = skb_checksum(skb, 0, udp_len, 0);
uh->check = csum_tcpudp_magic(inet->saddr, inet->daddr,
@@ -1172,14 +1171,14 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb)
nf_reset(skb);
/* Get routing info from the tunnel socket */
dst_release(skb->dst);
skb->dst = dst_clone(__sk_dst_get(sk_tun));
skb_dst_drop(skb);
skb_dst_set(skb, dst_clone(__sk_dst_get(sk_tun)));
pppol2tp_skb_set_owner_w(skb, sk_tun);
/* Calculate UDP checksum if configured to do so */
if (sk_tun->sk_no_check == UDP_CSUM_NOXMIT)
skb->ip_summed = CHECKSUM_NONE;
else if (!(skb->dst->dev->features & NETIF_F_V4_CSUM)) {
else if (!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM)) {
skb->ip_summed = CHECKSUM_COMPLETE;
csum = skb_checksum(skb, 0, udp_len, 0);
uh->check = csum_tcpudp_magic(inet->saddr, inet->daddr,